Machine for evening and grading soles.



E. P. NICHOLS MACHINE'FOR EVENING AND GRADING SOLES,

APPLIATION FILED UG'L", 31, 15H

Patented Mar. 10, 1914.

SHEETS-SHEET 3.

E, P* NICHOLS. MACHINE Foa EVENING AND GRAmNG SOLES. APPLICATION FILLED 00T. 3i, i911,

1,089,492, Patented Mar. 10, 1914 5 SHEETS-SHEET 4.

Z/Zm@ w Z).

E. P. NICHOLS.

MAHINE POR EVENING AND GRADING SOLES.

APPLIUATION FILED 00T. 31, 1911.

Patented Mar. 10,1914.

5 SHEETS-SHEET 5.

30 broadly either t-lie `ing and Grading Soles,

. sionalc'ase is restricted to grade marking of; such died-piecesof stock.

2 0 vS limited to the UNHED STATES- TIoN- or MAINE.

To all iff/wm -it may conf-ww Be it'knoivn that l. ELMER l. :i citizen of the United States, and resident of Manchester. iii the-count)Y of Hillsboro aiid-Stateof New Hampshire, have inventled :in lniprovci'iieiit in Machines for Evenof which the following description, in 'connection with the accompanying drawings, is a specification, like lletters on the drawings representing like parts.

This is a divisional case of my application Serial No. 219,755, tiled August 6, 1904, now Patent N o. 1,009,988, for a machine for evening and grade-marking boot and shoe soles, or ot-hoi; pieces of died stock having the same general characteristics, i mechanism for the aid parentapplication is evening feature, and to those features which i ally indicatin are not restricted -to said inarking'feature alone, whereas the present divisional application is limited to the marking feature alone, z'. e. each claim is intended to-be restricted in some particular to means for Visuthe thickness-measurement of the stock being graded. The term gradalone, ,while the marking. relation -Qprovided with a swinging. rack which receivesfmovement from connections with detect4 pendently movable feelers or posts, so

ing means, as in t-heparent or original application, means .evening means -or the grade-marking means, and all the generic `claims toth'e grading means, thus defined, .arein the'parent case, including all claims for combinations of the evening and the markingI iniechanisms,v together with the group of claims to the evening mechanism group of claims to the marking -I nechiinisin-has been divided therefrom, by requirement of the Patent Office, and is contained in the present case. In vcarrying out my invention, I provide a grade indicating. or marking device, preferably-consisting of a rotary marking wheel carriedby a frame movable into and cnt of with the leather piece and a 'pinion engaired and operated by ing means, including 'a plurality of indemounted as to be :movedjseparately or together as the-particular stock may require speification of Letters Patent.

Original-application i'led August 6, 1904, Serial No. 219,755.

` 31, 1911. Serial NU. `657,748.

NicHoLs, i

The present divia 'power operated used in this application and PATENT oFFgoi-:Q

@nannte soLEs.

Patented Mar. 10,1914. Divided and this appiicatiqn'fif'i october by an actuator spring toivardan `opposite stock receiving?r and cooperates .with said d gripping' the leather -piece thereb whereby the uiieveiinesses of the leather piece move oiieorboth of the posts' so as to 'set the said marking Wheel .controlled b` vLthe detecting ineansfor indicating'visual y the' thickn ess of the thinnest portion. of the leather p'ieceengagedV by the^detectors or feelerposts. In -the preferred embodiment of the machine here presented, a plate is 4interposed between the ends of the post'sand;thelea'theiA piece, so that thepostsengaige the' latter through theniediuni of saidj'pl'ate, iwhich etecting means in einst-ich ih' wol-k iis fed' through Powe My invention alsoincludes, ini'combina tion with the gagingniechanisxnffor; 'setting marking mechanism in ref spouse to `the detectorsJr and n ism, connections from the gagin indeperidfentlyof t l Further featiires'omy 'invention will appear more'at length in'thelourse of the following description, taken in Iconnection with t e accompanyingdrawjngs, ini'i'ijliich` igures `landare respectivelyfight and left side elevations of the .machine, with various parts omittedfoi'` clearness'iof illus-- tration; Fig. 3 isa front partly broken away to illustrate parts at the rear of the machine; Fig. 4' is a top plan view thereof; and Fig. 5 is a central vertical llpiigiztudinal section thereof onl the line 5 5,

Referring to 'the preferred embodiment of the invention as exemplified. in the'machine l cf the drawings, .tliemechanism -thereof'is shown as mounted in a frame -1 have uprights 2 said mechanism may be specifically 'described as consisting of a plate 3 whose bottoni side constitutes the detecting face or surface'to engage the sole, being slightly hollowed or cutaway Aat 4 s0 as not to usii'al or preferred at its front-end, and

sole being graded, and vertical detector-ser etiveen,

be affected by the middle portion of the leather engaging member which. .f

elevation thereof,

posts 5, 6, which constitute feelers (as'termed A in my patents, including the original of this case and the application Serial No. 257,587, there mentioned as containing another species Aof this feeler mechanism,) shown A as resting loosely at their lowenends in sockets 7 on the upper side of said-plate, so as .thus to engage indirectly the leather piece in opposition to a 'gripping member, preferably. a roll.for gripping against the oppo-.

- its lower end said bar 8 and at its upper end a block .12 adjusted by a thumb screw 13 threaded through a top bar 14 bolted at: its ends to the opposite uprights 2.

At theirupper ends, the detector posts 5, 6 carry fixed lugs 15, 16 projecting toward each other, see Fig.'3, and loosely engaging the upper sides of'arms orlevers 17, 18 fast on a rock shaft 19 extending across the machine -and carrying at its' outer right-hand end a crank 2O connected by a link 21 to the upper end of a toothed sector 22 keyed to the projecting end ofa shaft 23, see Fig.- 1, passing through the machine.` The? shaft 23 has a somewhat similar toothed sector 24 keyed -to .its opposite end, see Fig. 2. The movementof these two toothed sectors or swinging levers 22, 24 is comnmnicated by i links 25, 26 to graduated or avedging cam stops 27, 28 pivoted at the opposite sides of the machine at 29, 30respeclirely, to be engaged by the flattened upper surfaces 3l, 32' of lugs 33 fasten the lower cross bars fill ofthe journal frame which carries at ils upper end the adjusting roll olf-pressure defviee 36, which flattens out the 'stock against aspiring-pressed under'roll 38' while beingr markedby the gradedesigmxting marker. The toothed SCCtOrS 22, 24 are locked in their adjustmentatthe proper time by a pivoted gate 3 9, one of whose ends 40 is fast on a short rock shaft 4ljcarrying at its opposite end a crank 42, see Fig. 2, connu-.led by a link 43 toan elbow lever 411 piroted to theframe 1 at 45 and provided at. its f ree end'with a dog or detent 46,' shown as havj ing a small tooth held 1n engagement with l c I set the grading devlces to quarter-irons, but

the teeth 47 o f the sector 24 by a spring 48.'

The ksuccessively th'innei` measurenu-.nts

along the opposite-edges of thesole or Pleeg being graded are transmittedby 4the detectors, posts or feelers 5, G of the feeler mechanism tothe gag'ing mechanism and are registered or retained hy the. teeth 49,

Figjl, of the' sector 22 engaged by a dog 50 on-the vright hand side of the machine;

which constitutes said gagingmechanism,

adjustment by the .dog 4G- at the opposite side of the machine,operated by thetripping of the gate 39 when permitted to fall by thecomplcl'e feeding of the leatherpiece into the machine. 'lhe gagirg mechanism is set to grade the stock for any given portion of its length, by means oli' a foot 51 adjustably secured at 52 in the path of the leather stock lo an arm 53 fas! on a rock shaft 54 from whose opposite end projects an arm 55 for raising and lowering an L- shaped'bar 50. The free end of this bar'G engages a pin 57 projecting from the end of the dog 50 which is held under constant tendency to rise by a spring 58'. The result is that untill the forward end of l the piece of leather being graded meetsl the foot. 51, the feeler mechanism can rise and fall and the sector 22 swingr hack and fortharithout registering any `tlli .kness-detel'minations, 'but the moment that thestock engages` `the foot 51, thc bar 5G thereby raised awayI 'l'ron'i the dog 50 so. that thedatter is permitted to engage the teeth .49 ot' the sector s said teeth are ratchet teeth, the sector is still .free to swing to the left, Fig. -1, for successive inerementsof lowering'inorement of either or both of the detectors.A 5, (i and adjacent parts of the feeler mechanism3 To prevent the-gaging mechanism from being influenced by the falling of the feeler mechanism when-the leather 'escapes from beneath the plate 3, the locking mechanism end of thestock is still heneath'said plate.

.To permit the machinevtoinark the leather piece'eilheijiiush or meager with reference to lheactual grade ofuthiekness determined b v the feeler mechanism, the end 5t) of lthe link'2l is tlire:uled t0 rrceive.\ixuts-GO by means ot` which lhefgrawe marking can be adjusted so as to be either flushor meager .with respect to the gagingv mechanism, said adjustment serving also tio compensate for wear and to provide 'cxtremecertainty and precision of adjustment. of the gag-ing mechanism. 'Further saving of leather and aci-.nraey of gradingr is accomplished by making the teeth 49 iinervthan the degrees ot'grading for which tlre Ynn'iehine is `constructed., For instance,in a. machine grad in g to q: iarter-irons,- (an liron being `one l'orty-eiglitlifof an inch) the teeth 47 of the locking sector 24 are spaced as required to the teeth-49 of thea-gagging sector 22 are preferably only halt` as long, theresnlt. being that when the locking lever 44 acts, it finds the sectors 22, 24 already held by .the dog 50 to within at least one-eighth of an iron of the nearest actual quarter-iron thickness of the leather. Hence, when the ,leather escapes from the feeler mechanism, that tooth 47of the sector 24 must lock against -44--47 is provided tooperate while the rear and this gaging mechanism is locked in its v-the lever 44 which corresponds the nearest 13e preferably in the forni of a wheel. herein Stationary eross plate 05. `Said uprightf; are y eonneeted by a bridge titi normally heid undei downiiard tendent- V by oppoaile yepringm` iii', Figi 2i. engaging tationary hooks` lib'. I

intermediate ita ends, the bridge o6 sappia-ny pivoted ari'n 0U held by a apriug T0. Fig 5. ander trndeney to swing toward the lett. Fig. il said arui terminating at its lower end in a segiaental raek engaging a pinion T2 fast on :i Shaft T3 which carrie` the marking Wheel (i1. The arm 00 i moved to the right. liig. by a chain T4 pasgsing over guide Wheels T5, 70. Figs. 1 and 4f, and secured to tl'ie'seetor 22 by an adjustable bolt 77 whose a djuztment' also serves as a means for bring ing the marking meehanism into desired relationi flush or meager as preferred, with the gaging meehanism. The marking wheel G1 is reeiproeated in nuiaon with the passage of the stoelnsaid mechanism being herein shown as set in operation by the Stork itself. and eomprising a plunger T9. Fig. 5. depending: from the bridge 013 and normally engaged by a rotary lifterf') jourualigrd slightly to one aide of the plunger so that the latter may "lezlieifaid, upon ewaping from tinl end 0 thereof, and will be immediately engaged .inl iified by the end l thereof. Said lifter i3 roiaten by a gear 89, Fig. i), driven by a ii'ain of gran` 52h81. R5, the latter forming a part of a elnteh whose emupleuiental por- Asion Sti. Figs. I3 and 4. i fasi on a pinion HT driven by a gear 8F on the main shaft H0. The pinion 8? meshes with a gear 00 whieh pimitively rotates the upper roll h'i. and the main shaft earries at its opposite end a pinion 91 meehing with a gear 0;) whieb poteitively rotaie the under roll 38. ln tlml preferred maehine of the d1'aWiiigS.tlre sto/:ii is not` stationary but Vfed through the ma ehine by Y\prorliet eliains 03 passing over aproekeie 9i. $95. the latter being driven by sproeket wheels 90. 07. Fig. "le, and ehain 01S troni the right end of the lower roll 3S. A lever 99 i5 pirated ai 100 and eouneets with a slide rod 1.01 provided ou its inter edge with a projeeting lng 102 and lightly farther to the left(` Fig. 4, with an ineliued `aurfaee to engage' a earn bloek 103 against which said rod is normally held by a spring L04. he lng 102 is normally engaged b v a g ivot'ed plate 105 whose earn surfaee or oblique lower edge, Fig. 3, is adapted to be .engaged by a pin 1,06 projecting from the raitehet gear or eluteh Si for moving Said gear S5 to the right` Fig. Il. in opposition to a eontained spring l'or ilnpelling it normally into eluteiiing engagement with the eou1plemental para' H0. Said pivoted plate is uor nially held rearward by a spring' 10T. Thus, aa the ,aol-h strikt the lever 0f?. it thereby punite the alide rod itil to the lel't. Fig. l. -o that the proiertiou 1thI behind the ealn plate 103 ving the latter forward away from the gear rf n.ilir'iently lo disengag'e the pin and permit the elutf-h to operate. t tbe `:une linie the rod 10i is disengaged l'rini the rain platt ltifiby riding along the ineline 10?. whereupon the spring 10i' retoref, the inning pianto itl original po- Filion to i'el'eive the pin lUi and diaengage the rlnteh at tneyiid oi' one revolution of Said gear. lumber embodiment or speeies ol the tiwkfgoverned or tripped marker aetuatf'ir ia Shown and apeeifieally elainied in luy impendingapplieaiion Serial No. lln'tlh.

filed February 2T. 1008. the generie elaiins being in the present ease. Said application Serial No. 118.000. is now Patent N01 110575353.

The stock is held firmly down upon the Sprocket chains by a pair of vertieally arranged plate er pressernl 10hI supported at their oppo ite ends by rod.L 100. and springs 111. 11;). one of the rods 105) earrying a releasing bar 112i. see Fig. L. provided with a pin 11-1 at its lower end to lift a hook bar 11.3 from engagement with a pin 110 on the elbow lever il whenever atoek is being fed into the mai-bine. The opposite end of aid bar 115 i5 eonneeted at 11T to al1 elbow lever 11n` pivoied at 110. its adjustable end being` norn'ially held by a spring 1:31 against the atljaeent lng 21,3 ,of the journal t'raine ot' the top fee/f roll or pre r ure deviee iin. ao that as iinl work eseapea from the inaehine and the roll 30 falls` itsA lug 33 swings lever 11F and pulls forward onbar 115. thereby opening the gate 39 through the releasing n'ioveinent of lever 44. link 43, and erank 42. for operatinglr thelever12lot' a usual eountel' er registering mechanism 124.

in operation, when the gate 3S) tlies up, the operator quickly enters the sole or other pieee ot' died leather whieh is to be grade-marked. said piece being guided centrally by divergent wings into `the flaring mouth formed by the divergent surfaces lof the reeeiving portion of the f'eeler mechanism, said reeeiving portlon consisting of the plate l3 and cooperating feed roll beneath it which grip the leather firmly between them and thereby lift the detector posts or feele-rs 5, o (whieh rest on the feeler plate 3) in opposition to their aetuating mechanism, normally tending to move said detectors downward into hard gripping and Stock flattening relation with the leather. Asy Soon as like stock engages with the sprocket chains 93, said eliains immediately pull it into 'l'oreible engagement \vith said teeler meehanisin. The detectors follow the inequalities of thickness o1' the sole or other leather piece along the edges thereot'` free relative sliding inovenient being facilitated by the interposition of the plate 3. This plate receives the lateral or sliding movements ot the stock and protects the feelers therefrom (thereby overcoming the necessity of having the feelers inove laterally as in niy Patent No. 841,809) and permits the requisite independent up-and-doivn movement otl said feelers by its pivotal or rigid swinging body-movements at either end, as distinguished from the tlexing or yielding of the corresponding plate in the other species thereof already mentioned as contained in iuy copending application Serial No. 257,587, tiled April 2T, 1905, now Patent No. 1,0-lt'i,2125.' edge or the other otl the sole proves to be thinner or thicker than the opposite edge, one detector or t'eeler-post or the oi the ease may be. moves aeeordiiigly under the pressure ot' the spring 11. As s iid post descends, (let it be supposed) its tixed lug l5 or lt', as the ease inay be. positively roeks i shaft 1.) by engaging thi` arni oi' lever 1T,

18 thereof. and through sait As one t her, as

l i i l shaft tlte gagi ing sector 2. is sivung to the lett. Fig. 1. 1

As soon as the l'i'oiit end of the leather piece has engaged the toot .31. lifts the bar 5t), whereupon payvl .'t) engages the rateliet flJ. ani

it thereby instantly E l thereafter the ineeliaiiisin is gaged to the thinnest edge portion otthe stoek passed ovei'. of the stock passes t'roni beneath the leelers the forward eiid` posts and l'eeler plate. it engages and lii'tsl ltth \vhieh thereupon 115 troni the elbow lever A1stA leaving the gate 3*.) in

the pressei's tlte hook bar see Fig. L', thereby free position to drop of' they stock has eseaped theret'roin and passed beneath the t'eeleithis takes plaee. the dog gages the teeth 1T o1l the seetor 2 positively loi-king the, gagiiig iiieehanisin. s said locking thereot' takes plaee while the extreme rear end ot the sole is .still sup porting the te er plate and deteetors. the subsequent dropping ot' said plate eaiinot in any Way atl'eet the at nieeliaiiisni. Sinin It' iininediately en ljustinent of the gaging. ltaneously with the. inove` as soon as the reai' end ineehanisin. When l, thereby ments o1 the l'eeler ineehanisin and seetor 22.

the linirking dev'iee or wheel (31 has been correspondingly adjusted by the swinging 0f the, rack 7liinder the intluencel of chain 74 and spring 70, so that it also is located at the saine timel as the gaging mechanism and by the saine means. 'fedalong beneath the pressers gages with lever 99, it thereupon clutch automatically into driven engagementy 10S and eii- .ks the steek is` throws the y with the power mechanism, with the result that as the sole gets into just the right p0- sition beneath the marker 6l, the plunger T8 is released, thereby permitting the springs GT to cause the marking wheel (31 to stamp or brand forcibly the proper grade mark on the leather. This is done instantly, and iininediatelv the lifter end 81 raises the marker. 'lne same mechanism and movements which adjust and set. the marking mechanism as just described, also adjust the wedging cam stops 27, 28, so that when the front end of the sole engages the rolls 36, 38, the upper roll 3G is lifted thereby until the lugs 33 engage that portion ot' the ec centric surfaces of said stops directly above said lugs. This Ilattens the stock or maintains it tlat and at a predetermined level The raising of the roll 36 by the entrance of the stock thereunder also permits the spring 1'21 of elbow lever 118 to move the hooked bar or latch 115 to the right, Fig. 2, into engagement with the pin 116 so that, upon the escape of the sole from the roll 36, the falling of the lugs 33 operates to pull said hooked bar 115 te the left, thereby unlocking the gaging mechanism and opening the gate Bt) for per initting the operator to feed another blank into the machine.

,\s this divisional ease is restricted to the marking oi' visual indicating species of Sole grading. l oinit a further explanation and discussion of the mechanism and advantages ot`-iiiy inaehine yvhieh are contained in the parent ease ot hit-h this is a division. All the gaging adjustments are aeeoinplished by the passage ot' the leather ivithoiit depending for any ot' said adjustments upon the driving power of the'niaehiiie, and hence there is no possibility ot' uncertainty or irregularity beeause ol' the slip or \vear of the gears. lill that the driving ineehanisni is required lo do is to operate the feeding ineehaiiisui and restore tht` marking iiieehaiiisni at'ter il has operated.

.\ly topeiidiiig applieiition Serial No. gfiwft. tiled July ltttt'. eontaiiis a ina eliine ivhieh. iii a ininioer otE itsl features, is 4subordinate to generie elaiins ot the present ease. but elaiiiis a di'il'eieut speeies iii a nuni bei' o1I iespeets. as t'or iiistanethtI stock is held stationary iii the inaehiiie during the l'eeliiig and grading thereot. and the detectors engage the stoek \\'ith :i gripping aetioii during the deteeiiug operation. and the marking die is selectively eontrolled by the 1 detertoi' or deteitois nearest to tlie gripping deviee oi' plate whit-h cooperates \\`itli the deteetors to grip theI stock iii the sense Of grasping the stoel; tirinly so that it is held iniiuovahly during the detecting operation, and then tht` stoek is backed or pulled out of the inaehine. as distinguished treni its being iccefieii n in coi'itii'imnis; Isiiyreiiieiit the mncliine :ifi in the present enne by t'rciiiw mecininiein.

l lo noi intend te preci.-.e confit: not ini;

and fed through i-i-!rict nrwrlf to the und .arrangement of parte. :aldi la i have herein #ci forth ilie cc-netrnrtion nin' l i moet priii'iilid, im i' invention. what t new und ci, f Patent is;

i, imii'liine ot' the kind duwriliei. im' ing, in cnniliniition. menne :ig-nine? which :i pieve oi' etork mJy he presel means, roniprwing :i

nid tirntniimed menus, :in :actuator and moving menne therefor for cane-ing one ot i seid mei n to tend to approach tiie other, and means, controlled by the aforesaid dc.- tectingg menne :end including :i singie com mon incml/ifr mitnimmt to vleuiillv indiczitc the tlm-knew: or' the tl'iinnest portion only of l the stock :n determined by said plurality of Y' ind icnt ing kind described, havi regulating said indicating mechanism to indctcciore.

2. A machine et thc ing, in combination, means against which n piece of stock may be pressedr` of dctectori-= moi'nlzile to etfect seid pressure in the direction of mid menne` for insuring relative prim mentl lietvtcn f ing the detecting opcrntion, :ind includinge n single common incn'iher for visually indicating the tance between the two.

A machine of thc kind described, hirving, in con'ibiniition, devices for prcseing n pzece of stock on its opposite sides to be; inciiiding :i plnrniity of detectors indcpcndentiy movable ttf-'wird and from one i side of the iStock, ineens for nmii'iiziining said l said feclcr mechanism for setting said markdetectors under tendency to move toward the enne i, and :i single inf-:ine controliiilily related to said plurality of detectors and controlled by at least one of said plurality of detectors 'for visually indicating the thickness of the stock :it thc thinnest pince time detected.

4. In :i machine of thc kind dcscrihediliiwing' power mechanism, :i plurality nf detec tors; leather iniece to he graded. i gradeinflicating device, .ind connecting mechanism con willed by at leest one of sind detectors for .ri ,i preim' und con-idem niet nre liv Lctif rs ,i

.linien tor pliiriilitj' ot' dctertore i indcpcnflrntiy; :nnviililc in the direction ot' l i lock grading :i plurality ng und stoeltliittcninf; movc- :i detectors :ind menne, J menne for 5o rnoviniY said detectors with sind f ticiillv movable,

wheel, provided with a pinion, sin arm piv- 120 segmental ruck responsive to the uiievcnnesses of a:

l setting @nid grndw-liniicnting device. operatiwf meriizinisn, nid pw,

j devine, the litter in: mdmg :i movable frame gridedndicating operated b v Suid poner mech cpern'ing 'b iiiiil indicating device in iii leather piece, sind con` mem containing meting for irzitiiig device independently mechanism. ii mnriiine ofthe kind described` mechanism. including visual grnde-inilicfiing mechanism, feelcr mechaniem. including `@elective means for detectl a 1 mezquina to f i' ing the thinnest epot among ii plurality of Spott, t'cli ci" in fi predetermined aren of the etock. :unil incrimniem for transmitting said ,single detection only of said thinneet spot ot said i'eelcr mechanism to thc visual ,grade4 mechanism, said` transmitting mechanism incliuling adjusting means for diente in accordance with :i desired variation in thicknessedesignation from the said thinned detection of said feeler mechanism.

i. In n imiciiine ot' the kind described, teclcr inechfmiem. grade nmrking mecha nisni. :ind mixing mechziniem operated by said fccler meclmnisn'i tor setting saidmurking incclmnism. the hitter including :i vertiframe carryingr a marking wheel. power mechanism for operating Said frame, :,i litter operated bythe power mechanism of thc irnichinc for lifting said frame i und wheel when it has fallen, and connection-y from said gaging mechanism operata ing independently of `iid power mechanism for rotating said marking wheel.

9. In :i machine of the kind described, Fccler meehimam` grade marking mecha nisni` and ringing mechanism operated by inf.: mechanism, the latter comprising a verfrzime carrying a marking oted on smid frame and provided with `a to engage said pinion. a spring normally moving oppoite direction.

9. In Ni machine of the Vkind described, fceler mechanism, grade marking mecha saidarm 1n one, direction, and n connection from sind gaging mechanism for moving sind firm in an 125 nism. means for adjnstii'igrr the latter in accordance with the determinations ot the former, power mechanism, means tor operating said marking` mechanism. a clutch t'or the marking mechanism to mark the stock.

ll. ln a machine otl the kind described.

detecting means to determine the thin spots in a leather piece. a marking device to `rade-mark said piece, a lralne supportingY said device movable for marking the work, including.r a transverse bridge. springs se cured at one end to a relatively stationary part ot' the machine and at the other end to Said bridge Jfor moving said Y'ame and marking device to mark the work, means for transmitting to said marking device the determinations of said detecting means, means for obstructing the said movement o'l the marking device, and means for ren'iovingl said obstriicting means to allow' the marking movement of the marking device.

l). ln a 'nachine of the kind described detecting means to determine the thin spots in a leather piece, a markingV device to grade-mark said piece, a movable frame supporting said device. including a transverse bridge, springs ,secured at one end to a relativel)v stationarv part ol' the machine the kind described.

to the former to set l i l and at the other end to aid bridge for mov' ing said frame and marking' device to mark the Work, means tor transmittiner to said marking' device the determinations o't said detecting means, means` l'or obstructing the said movement ot the mai-lon;v device7 and means actuated b v the stock in passing or removing said obstructing' means `to allow the marking movement ot said marking-device.

1S. In a machine et the kind described, detecting means to determine the thin spots in a leather piece, a marking device to grade-niark said piece, a movable frame supportingr said device.,y including' a transverse bridge, swinging.,r means for shiftingr said marking device with relation to lsaid trame to vary the grade marks, connections for transmitting to said swinging means the determinations of said detecting means, means for obstructing the said movement of the marking device, and means for removswinging means movable with .said is beneath ing said obstructing means to allow the op eration of the marking device.

14. In a machine ot' the kind described, detecting;` means to determine. the thin spots in a leather piece. a marking device to grade-mark said piece. a trame supporting said device. including' a transverse bridge, bridge t'or shitting; said marking' device with rela tion to said traine to vari the tade marks, connectionsy tor transn'xilting.I to said swine;- ing means the determinatioie' of said detect ing means, means for oletructine the said inoxenaent ol' the marking device. and means l'or removing vsaid ob.-'tructin; r means to allow the operation ot the marking device.

l. ln a machine otl the kind described, tlc-terrine means to determine the thin spots in a leather piece. a ma rking' wheel to grade mark' said piece, power mechanism for movin;Y ,said wheel to mark the work, a pinion mi vable with said wheel for rotating the latter, a rack for actuating said pinion, and connections' between said rack and detecting` means and operable independently ot' said power mechanism t'or transu'iitting the de terniin-.itions` ot' the latter to said wheel.

lt?. ln a machine et the kind described, detectingmeansl to determine the thin spots in a leather piece. a marking wheel to rrmle-mark said piece, power mechanism for moving said wheel to mark the work, a pinion movable with said wheel for rotating the latter, a swinging rack for actuati. g .said pinion. connections` between said rack and detecting' means and operable independently otV said power mechanism ,for transmittingr the determinations of the latter to said wheel, and a spring always tend ing to move said rack in a i'iven direction.

li'. ln a machine ot' the kind described, detecting means to detect and lselect` a thin .spot t'rom amenar thicker spots` in a leather piece. a marking wheel to gradeanark said piece. movable bodily in the machine toward and trom the work, a pinion having' a, body movement with said wheel and a rotary movement 'tor rotation the latter, a swinging rack fo' actuating said pinion. and con nections between said rack and detecting means for transmitting' the determinations o'l', the latter to said wheel` including adjusting means for accurately adjnsting the position of said rack with relation to the detecting means.

1S. A machine otl the class` described, having, in combination, means against which a piece of. stock any be pressed, detecting means comprisi .gl a plurality of detectors imlependently movable toward and from ytd first mentioned means. an actuator and moving mans thereter for causing one of said means to tend to move towa rd the other, and means eontrollably related to all the de- Leccese lcctors; ont selectively controlled bythe one l the marit-er, said which gets nearest said first named means during the detecting operation and includ- `marking the latter,

ing single common member actuated to indicate the thickness of the stock engaged by such one of the detectors.

if). A machine of the class described, having, in combination, means against which a piece of stock may be pressed, a plnraiity of detectors movable in the direction of said means either collectively or independently, means for prodncingrelative movement between said detectors and said first named means, and means coiiti'ollably related to all the detectors but selectively controlled by the 'one which gets heures-said first named means during the detecting operation and including a single common member actuated to indicate the thickness of the stock engaged by said one of the detectors.

v20. ln a niacliinc of the kind described, power operating inechanism, detecting means to detcriiinc the thin spots in a leather piece, :i grade-marking device morable toward and from said piece for grade- `meclianism responsive to said detecting mechanism for adjusting said grade-marker, and operating mechanisin for said`ma'rker including a rotary lifter' arranged to have intermittent lifting connection with said marker, gearing, including a clutch, from said power mechanism to said lifter for operating the latter at predetei'n'iiiied intervals, and automatic clutch-operating mechanism for operating' the clutch in timed relationtn the adjusting of the marker,

21. In a machine ot' the kind described, power operating mechanism, detecting means to determine the thin spots in a leather piece; a grade-marking device movable toward and from said piece for gradev marking the latter, mechanism responsive to said detecting mechanism for adjusting said grade-marken and operating mechaiiism for said marker including a clutch for coupling said operating mechanism with said power mechanism, and automatic clutclropcrating mechanism for operatin the clutch in timed rclaiionto the adjusting of the marker.

22. In a machine of the kind described, power operating mechanism, detecting 'neiins to determine the thin spots in a gi i. l

leather piece, a grade-marking device mov able toward and from said l marking the latter, mechanism responsive to said detecting mechanism for adjusting,l n l I f sanl operating mechanism with said pone` said grade-marker, and operating mechanism for said marker including a clutch tor coupling said operating mechanism with said l power mechanism, and automatic clntcn-v operating mechanism for opc'ating the clutch in timed relation to the adj listing nl i nism including a ciutcli into operati i,

connected with the said cam device clutch against the force i means actuated antoine *ci tion to said adjusting moving said cam device and thereby permit the power nief'haii` to actuate the marker.

2?. Ima machine of the hind desc iower opera ting mechanism, detecting to determine the thin spots in a leatl` i a grade-inarkingir device movable towai from said piece for grade-marking tl ter, mechanism responsive to said ndet mechanism for adinstingsaid grade-in. and operating;` mechanism for said including a clutch for coupling said ci ingr mechanism 'with .said power mec and automatic clin'rli-opci'aiine m c foi' operating the clntcli in 'timed rein the adjusting of the marker, said clutch-onerating mechanisn'i inclu( ribed` alle) kingr the latter, mechanism responsive to :said

detecting mechanism for adjusting said grirdemarlier, a mi operating inechanisinfor said marker including a clutch for coupling said operating inceliaiiism with said vpower mechanism, and mechanism having an actu-r ating part in the path o the stoclr being graded for timing the operation of the clutch.

25. In a machine of the kind described, power operating mechanism, detecting means to determine the thin spots in a leather piece, a grade-marking device movable to ward and from said piece for grade-mark ing the latter, mechanism responsive to said detecting Smechaiiisml fer adjusting said operating mechanism for said marker 'including a clutch for coupling c tch-operai'ing mechanism inwniling a- .,wnging cam plate having a beveled for seg-aging 't icing :"lie

ing surface, means connected with the clutch for engaging Suid beveled Surface to rctnu't thev clutch ugamst Ithe force of 51nd .xprlngl and mechanism hzlvlng n actuating purl in hc path of the stock belng ing postmn.

graded lm. swmgmg sand cam plate luto diddl-relou ing surface,1neans connected with the clutch i In testimonyv nhcrvot. I have signori my for engaging' said beveled Surface to retrzut nunw to thib- .slqwmn-ntloli. 1n ine presenti' the clutch ugnil'lst/the force of sind Spring', i ol' twn Asnherrilnnj v' mlnwsos.

und mechanism haring an actuating puri Ain w I-lIiMIll I. X ltllOIm. the p'nth of the stock being graded tor. nnosscnz swinging said cam plate into clutch-relaisv nco. II). .\I.\x\.v|c|.|

ing position. 2 L. Iwnizns.

Il .if hereby certified that in Letters' PntentiNo. 1.085492, granted March 1U,

an improvement in Machines for Evening sind Grading' Soles", :m error appears in the printedl specification requiringv Correction :is folloii/szlnge 6, line 4Q. for 'the Word or readfor'; and` that the said Letterel Intent .should he rend with this correction therein that the sanne muy conform to the record of the onse in the Patent Olee.

Letters Patent Nov 1,089,492.

Signed `nd sented this 31st day'ot' March, A. D.. 1914.

ion |n [SEAL] J. '1'. ,NEWTON Correct 1914, upon the application ot' Elinor I. Nichols, ot' Manchester, New Hampshire, for

Il is hereby certified that in Letters Patent No. hmm-L92, grunted Mal-ch 1U,

an improvement in Machines for Evening und Grinding' Solos, :in error appears V in the prmtedspeclticntion requiring correction as follows; Page 6, line 49, for

- Vthe word or read for: and phat. the said Lettere Patent should be rend with Letters Patent No. 1,089,492.

f 1 the Patent Office.

C A Y .n i 1 l f; T- Signed and sealed this 31st day of March, A. D., 1914.

o i i [SEAL] .1. T. xEWToN, 'im' t] 'Acting (,bmmz'ssz'oner Qf Patents.A

1914,upon thc application' of Elmer l. Nichols, of Manchester, New Hellup-hire, For

this oorrection therein thatnthe'sanie may conform to the record of the euse inV 

